With the introduction of the N-Series tractors in 1986-87 their model numbers were pushed up. The D10 had sales of their Fiat-Allis/ Komatsu competitive sized bulldozers combined. Between 19 nearly 1,000 D10s were made at Caterpillar's East Peoria plant. The D10 was introduced at a dealer meeting by Caterpillar in the fall of 1977. In March 1977, prototypes P-1 through P-10 would appear and be subsequently dispatched to different job sites. The first pilot D10 was D10X1 and was shown in July 1973 at a big Caterpillar corporate meeting. In 1976 Japanese company Komatsu came out with an even larger bulldozer called the D455A at 620 hp (460 kW) and 167,000 lb (76,000 kg). For example, the Fiat-Allis 41-B track-type tractor had 524 hp (391 kW) at the time, while the D9H had 410 hp (310 kW). In 1974 after AC and Fiat merged their construction equipment divisions the 524 hp (391 kW) 41-B was introduced. Allis Chalmers introduced at Conexpo 69 in Chicago a 524 hp (391 kW) HD-41 which was the largest crawler in the world. At this time, competitors were building bulldozers that were more powerful than the D9. The Caterpillar D10 was the result of a need for a tractor larger than the Caterpillar D9. It was the first modern tractor to use the elevated drive sprocket to improve durability, operator comfort, and ease of maintenance. (then called the Caterpillar Tractor Company). The Caterpillar D10 is a track-type tractor manufactured by Caterpillar Inc. JSTOR ( January 2021) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. I echo Michael’s sentiment when he says this is an incredible piece of Aussie engineering designed to meet the specific needs of this company working in some of the harshest conditions on earth.Ĭheckout this brief video clip of the machine in action below.This article needs additional citations for verification. They use the standard radiator for coolant, but install a secondary transmission oil cooler which is mounted up on top of the ROPS frame, it looks a bit odd, but it is necessary as they tend to run this beast in 2 nd gear all day pulling the 10m wide blade plough. The same D11 transmission is used, but they utilise the trucks torque converter and lock up clutch arrangement. This configuration bumps the power up to an impressive 1250hp. To enable this, they take a D11R or N model, remove the standard 850hp (V8) engine, stretch out the chassis, making it longer to give them the extra space to shoe horn in a Cat 3512 (V12) engine taken from a giant Cat 785 dump truck. It transpires that Queensland based Mearns Hire, who were established in 1965, have modified four of their Cat D11 models for their work which involves blade ploughing outback hardpan, cutting the roots off scrub, and re-seeding. My interest was raised and I figured it would make for a great blog post to kick off the week. Over the weekend I came across a series of photos posted on our old mate Michael Bullock’s Instagram page aka the photos were originally taken by Lawrence Lowe who shared them with Michael for his page.Īs Michael wrote, D12’s Do exist! but only in Queensland, Australia though.
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